Metal window structure



June 28,1932. A. G. SIE BENLIST METAL WINDOW STRUCTURE Original FiledApril 50, 1928 2 Sheets-Sheet l June 28, 1 932.

A. G. S IEBENLIST METAL WINDOW STRUCTURE Original Fil ed April 30, 19282 Sheets-Sheet 2 FIG; 5

I /IIIIIIIIA lld g Patented June 28, 1932 UNITED STATES PATENT o-FncsANTHONYG. 'SIEBEN LIST, OF'MILWAUKEE, WISCONSIN, ASSIGNOR, BY "LIESNEASSIGN- MENTS, TO 'MIIJGOR' STEEL COMPANY, OF "MILWAUKEE, WISCONSIN, A.CORPORA- TION OF 'DELAWARE "MET-AL INDOW STRUCTURE Original applicationfiled *AprilfBO, :192'8, Seria1 'No.

274,122. Divided and this application filed-July :1,

1929. Serial No. 374,994.

. vide a sheet metal window structure which .isof simple and lightweightconstructionand 5 yet strongand durableas well as stifi .and

rigid; which, in use, is easily opened and closed and yet in closedpositionprovides a weathertight construction; and whichis easy andcomparatively inexpensive to manufac- 110 ture. The present applicationis .a division of my copending application formetal window structure and-method 'of making the same, filed April 30, 1928, Serial Number274,122.

One of the principal objects of the invention resides in the manner ofconstructing the sash and window :frames whereby the problem ofproduction is simplifiedand the resulting construction, while-of lightweight, is so stiff, strong and rigid as not to be liable to be rackedorstrained in use.

In general these features and objects are obtained-by forming the windowframe of a V bases provided therefor and formed integral single piece ofmetal, the major structural elements of the window frame being-shapedand formed .by a drawing or cuppingoper-ation which fashionstheseelements fromthe metal of-the one piece blank in such manner as toproduce a'structure-of marked-strength and rigidity. Followingthecuppingoperation, the outside edges of the blank are trimmed or cutto form the .edges of the frame and to outline the stock subsequentlyshaped to constitute the appurtenances of the window frame, suchas=hinges,strengthening or reinforcing plates, stiffening wings, and

the like. After'thisa portion-ofthe blank within the confines of theframe ;members is cut away to provide the frame opening membersand atle'ast one of the margins of the windowopening is shaped to provide awater shedding weather strip.

Thesame generic features are to be found in the construction of the sashframe, the major elements of the-sash frame, "being'of a single piecesheet metal construction,

cupped or drawn to shape, and having in- V I verse section taken onlme212 of Figure ;1

tegral therewith the structure providing seats for the windowglass-employed and the Along its outside edges, the sash frame has itsappurtenances integrally formed there with.

The structural elements of'both frames are r y of cupped formation andhave angularly disposed frame members of continuous or 'integralconstruction and each framemember so formed has a body portion providedwith edge flanges, the flanges of the side frame rails all of the framemembers having :their body portions and flanges designed to .interfitandengage in the assembly to provide weather excluding members. Further,the hinge ears, reinforcing plates, stiffening wings, and weatherstripping (are all integral with the frame members. Thus,the windowframe and all its appurtenances are constituted of one piece ofvmetaland the sash,

frame is also of onepiece construction-except ,forthe two mullion orfinishing strips which are applied and welded in position on the with.the sash frame.

Due to'theangular members, to their integral construction and to\theircupped or drawn formation which not only upsetsbut also flangesthemetal,

rangement and combination of parts which will i behereinafter more fullydescribed and and to complete the Shapmg of the frame "particularlypointed out in the appended formation of the frame supports or bases forthe mullion strips" members affording hinge rails and latch claims,reference being had to the "accom- 'panying drawings, forming a partofithis specification, and in which:

, Figure 2isa fragmentary view intrans- Figiure iais a fragmentary Viewin -longi-- tudinal section taken on line 3-3 of Figure 1 Figure 4 is aplan view of the complete window frame, the sash frame being re- 5 movedfor the sake of illustration;

Figure 5 is a sectional View taken on line 55 of Figure 4; V V Figure 6is a similar view taken on line 6--6 of Figure 4;

Figure 7 is a view showing the sash frame in central longitudinalsection; and

Figures 8, 9 and are detail views of the sash frames'taken inthe planeof'lines 88, 99, and 10-10, respectively, of Figure 1, but showing onlythe sash frame, the associated portions of the window frame beingomitted.

The window frame and the sash frame embodying the present invention areeach constructed from a single piece of metal in accordance with themethod fully described :and' claimed in my c-opending application abovereferred to, and reference is made to such application for a fulldisclosure of the method of producing these frames. It is to beunderstood, however, that the present invention is not restricted tothis particular "method of producing these frames although preferablythe frames are produced by the novel method referred to.

Referring more particularly to Figures 1 to 6, inclusive, it will beseen that the window frame W, embodying the present invention, is ofrectangular form and comprises side frame members 6 and 7 and end framemema weather strip 5 is integrally formed. The

side frame member 7 (see Figures 2 and5) also has a body portion 10',and outwardly directed edge flange 11, and an inwardly directed edgeflange 12'.

,As shown in Figures 3 and 6, the end frame members are of similarconstruction and each includes a body portion 14, an inwardly directededge flange 15 and an outwardly L directed edge flange 16 on which astiffening rib designated generally atv 1 is integrally formed. 6O

- edge flange 16 and also'has a section I extending at right angles tothe section l as Shown in Figure 3. The wing 1 not only hasaf'stiflening and reinforcing function but 7 Each stiflening rib 1 has asection 1 bent down flush against the outwardly. directed its outwardlydirected section 1 aflords a gauge or stop operable when the window isput into place in the building to indicate and limit the extent to whichthe structure of the desired, the ends of the weather strip 5 may beconnected to the body portions 14 of the end members 8 and 9 by short,appropriately curved connecting pieces 5 and 5 spot welded to the endsof the weather strip 5 and to the body portions 14 of the end memberswhereby to provide a complete weather repellant stripping or structurealong the bottom or lower side of the window. The pieces 5 and 5 areconstituted of the scrap resulting from the formation of the wind-owframe from a single piece.

The outwardly directed edge flange 11 of the side member 7 is employedas a hinge rail and in order to stiffen and strengthen it and betteradapt it to perform this function a hinge rail stiffening plate 2 isintegrally formed with and bent down flush against the edge flange 11'.Integral with the stiffening plate 2 are hinge ears 3 rolled to the formshown in Figure 5 in which portions of the ears engage the underlyingoutwardly directed flange 11'.

The sash frame designated generally at S is also drawn 0r cupped from asingle piece of metal which is appropriately trimmed and shaped. Asshown in Figures 1 and 7 to 10, inclusive, the sash frame S consists ofside frame members 35 and 36 and end frame members 37 and 38, allconstituted of a continuous and integral piece of metal and each havinga body portion 39, an outwardly directed edge flange 40, and a crimp orchannel 30 around its inner margin, each crimp or channel having aninwardly directed edge flange 41. In addition, there are integral crossmembers constituted by the flanged channels or crimps 31 (see Figure 7and 9),

whichbrace and stiffen the side members 35 and 36 of the sash frame andwhich provide channels or sockets for the reception of doubled mullionstrips 43, the mullion strips 43 being inserted in the channels 31 andspot welded thereto as indicated at 47 (see Figures The flanges 41 ofthe inner man 1 and 9). ginal channels or crimps 30 and the flanges ofthe cross channels 31 afford seats to which glazing is applied andsecured by putty or other suitable means.

The structure of the sash frame is completed by bending or rolling'frame is shown in Figures 1, 2 and 3. As illustrated in these Figuresthe hinge ears 3 and are brought into registration and pivotally securedtogether by hinge pins preferably in the form of heavy cotter pins ofresilient metal which may be readily inserted or removed but which arereleasably held in position when inserted by Virtue of their frictionalengagement with the hinge ears. This mounting permits the sash frame tobe swung into the window frame as shown in Figures 1 and 2 at which timethe outwardly directed flanges 40 of the sash frame members fit flushagainst and overlap the outwardly directed flanges 11, 11 and 16 of thewindow frame; the body portions 39 of the frame members of the sashframe project into the opening of the window frame; and the crimps orchannels 30 formed around the inner marginal edge of the sash frame bearagainst the inwardly directed flanges 14 of the end frame members 8 and9 and against the inwardly directed flange 12 of the side member 7 ofthe window frame, thus providing a weather tight joint entirely aroundthe frames at the inner side and a second weather tight joint entirelyaround one side member and two end members at the outside of the frame.A weather tight joint is also provided between the lower side member 6of the window frame and the lower side member 35 of the sash frame butis constituted by the weather stripping 5 which is angled inwardly andupwardly toward the body portion 39 of the side member 35 of the sashframe so as to throw rain or water, that may drip down or be blown inagainst the frames, out to the eXte- I101.

The glazing G, applied to the seats afforded by the flanges 41 of thechannels or crimps 30, is secured in position by spring glazing clips Cand putty P and the putty which is forced into the channels 30 providesa cushion for the glazing.

A latch may be provided on the inside of the frame member 35 to coactwith a keeper 61 fixed on the frame member 6, as shown in Figure 1.

The invention claimed is:

1. An all metal window frame comprising side frame members and end framemembers constitued of a single piece of metal, one side frame memberhaving its marginal portion doubled back upon itself and formed withintegral lugs shaped to provide hinge ears.

2. An all metal window frame comprising side frame members and end framemembers constituted of a single piece of metal, each frame memberincluding a body portion and oppositely extending edge flanges, oneflange of the side member being angled to provide a weather repellantstrip.

3. An all metal window frame comprising side frame members and end framemembers constituted of a single piece of metal, each ing wing.

thecross members.

7 frame anembenincludinga :body portionand oppositely extending 1 edgeflanges, each end frame member having one "of its flanges doubled uponlitself a'nd formed with a stiifen A 'one piec'e metal sash framecomprising continuous side: and end frame members,

each including 'a bod-y'iportion having an outwardly directed flangealong one edge adapted to overlap a window frame, said-" bodyportionihaving a'crimp along its other edge provided with an insetflange affording a windowglass se'at.

5. A one-piecemetal sash framecomprising continuous 1 side 'and endframe membersf-" eacli-iincludjing a body portion :having an outwardlydirected flange along one edge adapted to -overlap a window frame, saidbody portion having aeriimp along its other edge provided with an insetflange aflording a window glass seat,-and:integral:crossmenr bers ofchannel form adapted :to provide mullion supports, "said cross membersbeing flan'ged'to iprovide windowiglass seats.

6. A one-piece metahsash frame compris ing continuous frame members,said frame members having 'criinps around their inner margins providingwindow glass seats and stiffening and strengthening :the frame windows,and integral crossimembers crimped to" provide window glass seats andmullion supports. 7 r i 7. A one piece metal sash 'frame' comprisingcontinuous frame members andiintegral 'crossanembers and mullionstrips:applied: te

' '8; A one-piece metal fsash frameicomprising continuous frame members:and integral "cross members, said vcross members having 'chanrrelsadapted to receive mullion strips.

9. A oneqaiece s metal sash'fra'meieompris ing continuous frame membersand integral cross members, said cross members having channels adapted"to receive mullionfistrips, said cross members 'also having flangespro-"* 'viding window glass seats.

/ 10. In combination awindowiframe includr rin ifranieimembers, eachframe member comprisingabodyiportion,anoutwardly directed v flange alongone edge, an inwardly-directed weather stripping flange alongthe otheredge,

edge flanges, and a sash frame including side and end frame members eachhaving the' a and end frame members each having the body portion formedwith an outwardly directed edge flange, the body portions of the sashand window frame members interfltting in the assembly with the outwardlydirected flanges overlapping and with the sash frame having weathertight engagement to the inwardly directed flanges of the window frame.

12. In combination, a window frame including side and end frame memberseach having a body portion and oppositely directed edge flanges, and asash frame including side body portion formed with an outwardly directededge flange, the body portions of the sash and window frame membersinterfitting in the assembly with the outwardly directed flangesoverlapping and with the sash frame having weather tight engagement tothe inwardly directed flanges of the window frame, one of the inwardlydirected flanges of the window frame having an inclined weatherrepellant strip adapted to have substantially weather tight engagementwith the body portion of one of the side members of the sash frame,theinner edges of the other side member and end members of the sash framehaving weather tight engagement with inwardly directed edge flanges ofthe window frame when the sash frame and window frame are interfitted inclosed relation.

13. A one piece all metal sash frame comprising continuous side and endframe members, each frame member having a channel integralwith an inneredge thereof, said channels having inset flanges forming window glassseats, the channels being adapted to receive putty or the like operableto provide a cushion for the glass.

14. In combination, a metal Window frame including continuous framemembers, each frame member having a body portion formed with an integralflat outwardly directed flange along one edge and an integral flatinwardly directed flange along its other edge, and a sash frameinterfitted with the window frame and having a flat outwardly directedmarginal flange adapted to fit flush against the flat outwardly directedflanges of the window frame and having its inner edge formed to haveweather tight engagement with flat inwardly directed flanges of thewindow frame.

In witness whereof, I hereto aflix my sig nature.

ANTHONY G. SIEBENLIST.

